Abstract
The study of monitoring the absorption dose of X-ray radiation received by thoracic examination patients has been conducted. The absorbance dose received by the patient is calculated from the exposure factor data consisting of electric voltage (kV), current (mA), time (s), and examination distance (m). Data were obtained from 130 male patients and 60 female patients, who performed thoracic examinations in a Posterior Anterior (PA) position. The absorbed dose received by male and female patients is compared with the maximum absorbed dose determined by BAPETEN for thoracic examinations on adult patients, which is 0.4 mGy. Differences in the absorbed dose received by male and female patients were identified by the T-test of two free samples with a significance level of 0.05. The results showed that the dose of X-ray radiation received by male and female patients was still below the maximum absorbed dose determined by BAPETEN, and the results of the T-test showed no significant difference in the absorbed dose received by male and female patients.
Highlights
The study of monitoring the absorption dose of X-ray radiation received by thoracic examination patients has been conducted
The results showed that the dose of X-ray radiation received by male and female patients was still below the maximum absorbed dose determined by Badan Pengawas Tenaga Nuklir (BAPETEN), and the results of the T-test showed no significant difference in the absorbed dose received by male and female patients
The WHO Manual of Diagnostic Imaging: Radiographic Technique Projections, EGC, 2011
Summary
Dosis serap adalah jumlah energi yang diserap persatuan massa bahan yang menerima penyinaran [10]. Faktor eksposi mempengaruhi besarnya radiasi yang dihasilkan atau berhubungan dengan dosis paparan [5]. Faktor eksposi terdiri dari tegangan tabung (kV), arus tabung (mA), dan waktu penyinaran (s). Besarnya dosis paparan secara matematis dapat dihitung dengan menggunakan persamaan (1) [11],. Dimana X adalah dosis paparan (mR), d adalah jarak fokus permukaan (cm), V adalah tegangan pada tabung (kV), i adalah arus tabung (mA), t adalah waktu eksposi (s), dan P adalah konstanta kesebandingan yaitu 15 [11]. Dosis paparan dalam mR dikonversi ke dalam satuan dosis serap mGy, dimana 1 mR sama dengan 87,7 mGy [10]
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